emerson



(No Model.)

J. W. EMBRsN.

ROTARY E.

, ENGIN No. 334,854. Patented Jan. 26, 1886.

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- ITE STATES PATENT Orricia.

JOHh XVILLIAM EMERSON, OF OPOPKA, FLORIDA, ASSIGNOR TO HIMSELF ANDCOLUMBUS VELLINGTO'N MILLS, OF SAME PLACE.

ROTARY ENGINE.

.SPEGIFIGATIQN forming part of Letters Patent No. 334,854, dated January26, 1886.

Application filed July 8, 1885. Serial No. 170,958. (No model.)

To all whom it may concern:

Be it known that I, JOHN WILLIAM EMER- soN, of Opopka, in the county ofOrange and State of Florida, have invented a new and Improved RotaryEngine, of which the following is a full, clear, and exact description.

The object of my invention is to provide a simple, inexpensive,efficient, and durable rotary engine.

The invention consists in a rotary engine constructed with adriving-wheel provided with a central passage and curved passagesradiating therefrom to and through the periphery of the wheel, toreceive and discharge the steam or other driving fluid admitted underpressure through a hollow shaft of the wheel from a supply-pipe, andprovided with a driving-shaft to which the machinery to be driven isconnected, all as hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings,{forming part ofthis specification; in which similar letters of referenceindicatecorresponding parts in both the figures.

Figure l is a sectional elevation of my improved rotary engine, thesection taken parallel to the driving-shaft or on the line :0 :20, Fig.2; and Fig. 2 is a transverse vertical sectional elevation taken on theline y y, Fig. 1.

The letter A indicates the main body of the steam or driving wheel ofthe engine, and B is a side or cap plate, which is fixed to part A byscrews a, a suitable packing, 0, being interposed between the-parts; orthey may be fitted closely together by a ground joint and the packing bedispensed with. To the body part A a short shaft, D, is fixed, whichshaft is journaled in a pillow-block or standard, E, rising from thebed-plate of the engine, and to the shaft D is keyed at f thedriving-shaft F, which may be geared with any kind of ma chinery foroperating it by the engine. The cap-plate B has a central opening, b,around which is formed the short tubular shaft G, on which is screwedthe packing g, which, when the steam-wheel rotates, makes a close jointwith the annular wall of a steam-chamber, H, formed in the pillow-blockor standard I, which has an opening at t in its cap, through which steamenters from a pipe, J, fixed to the pillow-block. The steanrwheel ABthus has support in the pillow-block E I, which I prefer to make withremovable caps or halfboxes, to allow the driving-wheel to readily beset up and to be removed at any time for inspection or repairs.

- In the center of the part A of the steam wheel I make in its sidefacing the cap B the recess K, which coincides with the bore of shaft G,and branching from the recess K,

which serves as a steam-port, I form in the wheel one or more curvedsteam-passages, L, which open at the periphery of the steamwheel, as atZ.

It is evident thatas steam is admitted through against the curved backwalls of these passages will cause the engine rapidly to revolve in thedirection of the arrow 1, Fig. 2, as the steam exhausts from the wheel AB at the ends Z of the passages L.

I show the engine made with two steam passages L, but it may have threeor more of such passages radiating from the port K.

A governor of any approved construction may be geared with the shaft Fand connected to the valve controlling the steam-supply, so

as to admit more or less steam to the engine to maintain a uniform speedof rotation with heavier or lighter loads on the drivingshaft. I

Among the advantages of my engine may be named the following: It is verylight in construction, allowing it to be cheaply built, transported, andset up, and it runs at high speed, allowing the drivingshaft to bedirectly connected with the machinery to be driven without theinterposition of pulleys, belts, or 9 other gearing, and any machineryrequirlnga slower speed maybe connected to the drivingshaft byspeed-reducing gearing. Furthermore, the motion imparted to thedrivingshaft is steady or constant and much more regular than motionimparted by cranks,which have to pass dead-centers in their revolution,as in ordinary reciprocating engines, and the friction of working isreduced to a minimum.

My improved engine may be operated by ICO steam, water, or other fluidunder pressure, I 2. The combination, in a rotary engine, of as willreadily be understood. the wheels A B, having shaft D and hollow 15Having thus described my invention, what shaft G, and provided withpassages I) K and I claim as new, and desire to secure by Letcurvedpassages L, for the steam or other driv- 5 ters Patent, is ing fluid,the pillow-block or standard E, the l. The combination, in a rotaryengine, of pillow-block I, having a steam-chamber, H, the wheel A B,having shaft D and hollow and apertured at z, the steam-supply pipe J,20 shaft G, and provided with passages I) K and and the packing g,substantially as herein set curved passages L, for the steam or otherdrivforth.

ro ing-fiuid, the pillow-block or standard E, the JOHN W. EMERSON.

pillow-block *I, having a steam-chamber, H, Witnesses: and aperture 2',and the steam-supply pipe J, G. W. HULL, substantially as and for thepurpose set forth. GEO. E.- FEARING.

